Perhaps you should try some spelling variations:
thanh tuong » thanh thuong, thanh tung, thanh huong
thien bang » khien bang, thien ban, thien dang
thien nang » thien dang, trien nang, thien cong
tuong cua » truong cua, huong cua, thong cua
dan thanh » dang thanh, danh thanh, ban thanh
thanh lap » thanh san, phan lap, thanh hai

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((thien bang) or (thien nang)) - thanh tuong cua ((thong thong) or (trong cong)) dan thanh lap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((thien bang) OR (thien nang)) - thanh tuong cua ((thong thong) OR (trong cong)) dan thanh lap.
• Adding a wildcard symbol may retrieve word variants: hoc ((thien bang) or (thien nang)) - thanh tuong cua ((thong thong) or (trong cong)) dan thanh lap*.